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Optoelectronics Letters 2025年

作者： YANG Ting WANG Ping HE Huimeng xiong Yingfei SUN Yanzhe LIU Qi School of Telecommunications Engineering， Xidian University

To improve the quality of the illumination distribution， one novel indoor visible light communication (VLC) system， which is jointly assisted by the angle-diversity transceivers and simultaneous transmission and reflection-intelligent reflecting surface (STAR-IRS)， has been proposed in this work. A Harris Hawks optimizer algorithm (HHOA)-based two-stage alternating iteration algorithm (TSAIA) scheme is presented to jointly optimize the magnitude and uniformity of the received optical power. Besides， to demonstrate the superiority of the proposed strategy， several benchmark schemes are simulated and compared. Results showed that compared to other optimization strategies， the TSAIA scheme is more capable of balancing the average value and variance of the received optical power when the maximal ratio combining (MRC) strategy is adopted at the receiver. Moreover， as the number of the STAR-IRS elements increases， the optical power variance of the system optimized by TSAIA scheme would become smaller while the average optical power would get larger. This study will benefit the design of received optical power distribution for indoor VLC systems.

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A versatile synthetic strategy towards rare earth based metal-organic frameworks

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Science China Chemistry 2025年

作者： Quan Shi Yun-Hao Xu Ming-Hui Chen Peng Zhao Wen-Bo Deng Ji xiong Kai Guo Ya-Qing Feng Bao Zhang School of Chemical Engineering and Technology Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering Guangdong Laboratory Chemistry & Fine Chemical Industry Jieyang Center

Rare earth metal-organic frameworks (RE-MOFs) have drawn wide attention owing to diverse network structures and various application ***,due to the unpredictable formation of the nodes,it is still challenging to design novel RE-MOFs.A novel versatile strategy was developed employing a RE-acetate complex (RE2(CH3COO)6·4H2O) as a precursor to construct RE-MOFs.2D RE-MOFs (RE-DBP) and 3D RE-MOFs (RE-TCPP) could be obtained by using dicarboxylic porphyrin ligands H2DBP and tetracarboxylic porphyrin ligands H2TCPP,*** RE-MOFs were further synthesized to verify the universality of the *** crystalline RE-MOFs could also be prepared at room temperature via the developed strategy,which could significantly promote large-scale preparation and practical application of *** proof of the concept,the performance of porphyrin-based RE-MOFs was investigated in the photocatalytic cycloaddition of CO2with *** the RE-DBP(Co) MOFs,Tb-DBP(Co) exhibited the best photocatalytic performance,which was also greater than that of the corresponding 3D MOF Tb-TCPP(Co) due to the optimal 2D structure and thus the accelerated photogenerated charge separation and transfer *** work not only provides a novel versatile strategy to design and develop RE-MOFs,but also proposes a promising approach for the potential bulk production of RE-MOFs at room temperature.

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稀土元素Er、Yb和Y掺杂ZrO_(2)的第一性原理研究

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原子与分子物理学报 2025年第1期42卷 156-162页

作者：熊威任浩重庆交通大学航空学院重庆402247 重庆交通大学绿色航空技术研究院重庆401147

氧化锆具有声子能量低,介电常数高和带隙较宽等优良特性,并且立方相的氧化锆(cZrO_(2))透光率高,适合作为上转换发光材料的基质.采用基于密度泛函理论(DFT)的第一性原理平面波赝势法研究了稀土元素Er、Yb和Y掺杂cZrO_(2)的电子结构和光... 详细信息

氧化锆具有声子能量低,介电常数高和带隙较宽等优良特性,并且立方相的氧化锆(cZrO_(2))透光率高,适合作为上转换发光材料的基质.采用基于密度泛函理论(DFT)的第一性原理平面波赝势法研究了稀土元素Er、Yb和Y掺杂cZrO_(2)的电子结构和光学性质.计算结果显示,掺入Y元素后,cZrO_(2)转变为直接带隙材料,继续掺入Er和Yb原子后,费米能级移动到价带内,带隙显著减小.Y和Er混掺后,增强了cZrO_(2)在近红外波段的吸收能力.继续掺入Yb后,cZrO_(2)对近红外波段的吸收能力有了进一步地增加.

关键词：氧化锆第一性原理电子结构光学性质

中华民族视觉形象的文化叙事及实践——基于文化形象学的论析

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新疆师范大学学报（哲学社会科学版） 2025年第2期46卷 112-121页

作者：令小雄苗昕西北师范大学马克思主义学院教育部高校思想政治工作队伍培训研修中心(西北师范大学) 甘肃兰州730070

文本基于多维度理论系统梳理中华民族视觉形象的文化意蕴、内涵质态与构建策略,为铸牢中华民族共同体意识提供理论基础。一是运用文化符号学理论解析中华民族视觉形象的意涵及其历史演变,探赜“和合共生,合谐共美”价值理想承载的多元... 详细信息

文本基于多维度理论系统梳理中华民族视觉形象的文化意蕴、内涵质态与构建策略,为铸牢中华民族共同体意识提供理论基础。一是运用文化符号学理论解析中华民族视觉形象的意涵及其历史演变,探赜“和合共生,合谐共美”价值理想承载的多元一体文化格局,通过提炼核心符号,揭示视觉形象塑造在铸牢中华民族共同体意识中的重要作用。二是采用历史唯物主义方法论考察中华民族视觉形象在不同历史时期的构建与传播路径,通过文化形象考古学和文献学剖析视觉形象文化功能转变与价值重塑过程,探讨其在凝聚民族力量、强化国家认同中的重要意义。三是引入文化哲学、文化心理学视角分析视觉形象在增强社会凝聚力和心理认同中的内在机制,探究视觉符号通过激活集体记忆和情感共鸣、唤起民族自豪感和共同体意识成为社会整合的重要媒介。四是基于文化形象学视角提出构建中华民族视觉形象的策略:从中华文化形象本体论和认识论出发,提炼具有代表性的符号,利用现代数智科技和新媒体创新视觉形象的表达与传播,注重文化形象多样性的辩证统一,发掘整合各民族形象文化元素的共同意识。

关键词：中华民族视觉形象国家形象文化形象认同文化传播

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多媒体技术应用于固体物理教学的探讨

咸宁师专学报 2002年第6期22卷 53-55页

作者：陈志远熊钢易伟松咸宁师范高等专科学校物理系湖北咸宁437005 湖北大学物理学与电子技术学院湖北武汉430062

概述了多媒体技术在固体物理教学中的特征和功能 ;从建构主义理论出发 ,着重讨论了多媒体技术在固体物理教学中的应用 ;

关键词：建构主义多媒体技术固体物理教学

Room-temperature deposition of yttria-stabilized zirconia buffer layer on metallic substrates by laser ablation

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Chinese Science Bulletin 1997年第16期42卷 1345-1350页

作者： xiong, XM Zhou, yl Chen, ZH Lu, HB Zhu, AJ Cui, DF Wang, HS Yang, GZ Chinese Acad Sci Inst Phys Lab Opt Phys Beijing 100080 Peoples R China Chinese Acad Sci Ctr Condensed Matter Phys Beijing 100080 Peoples R China

THE preparation of high-temperature superconducting (HTSC) wires or tapes is very important for the power application of HTSC. High-J_c properties of Y-Ba-Cu-O thin film at liq uid-nitrogen temperature are very attractive not only for small-sized electronic devices, but also for large-scale applications such as high-power transmission cables, high-field magnets and large-scale microwave components. Large-current power application would be achieved if high-J_c YBCO films were grown on practical cheap and flexible metallic substrates. An yttria-stabi-

关键词： YSZ low temperature PLD buffer layer metal substrate.

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德昂族春节的兴起与中华文化认同

中国非物质文化遗产 2025年第1期 64-71页

作者：熊威华中师范大学文学院

改革开放以来,春节在德昂族聚居区兴起,并逐渐成为德昂族节日体系的重要组成部分。德昂族春节的兴起,本质上是礼俗互动的结果,形成了既符合传统春节习俗,又带有德昂族文化特征的节日文化,表征出中华文化的多元一体性。德昂族春节的发展... 详细信息

改革开放以来,春节在德昂族聚居区兴起,并逐渐成为德昂族节日体系的重要组成部分。德昂族春节的兴起,本质上是礼俗互动的结果,形成了既符合传统春节习俗,又带有德昂族文化特征的节日文化,表征出中华文化的多元一体性。德昂族春节的发展过程与实践,彰显出德昂族的中华文化认同。春节在德昂族聚居区的深化发展,进一步强化了德昂族的中华文化认同。因此,应该高度重视传统节日的文化价值,夯实铸牢中华民族共同体意识的文化基础。

关键词：德昂族春节中华文化认同铸牢中华民族共同体意识

Electrochemical Behaviour of Cu underneath Thin Electrolyte Film in Atmosphere

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Journal of Materials Science & Technology 1998年第6期14卷 547-550页

作者： Zhang, XY Du, yl Chinese Acad Sci Inst Corros & Protect Met State Key Lab Corros & Protect Shenyang 110015 Peoples R China

An electrochemical cell was devised to investigate corrosion electrochemical behavior of metal underneath thin electrolyte film in atmosphere. The Piontelli's type of Luggin-Haber capillary was inserted from the backward of working electrode. The results show that. cathodic process on Cu is mainly affected by the thickness of the electrolyte film of 0.5 mol/L HCl+1 mol/LNa2SO4 aqueous solution and its anodic dissolution changed from Tafel region to limiting diffusion current. Moreover, the corrosion potential of Cu in due media will increase with decrease of the thickness of the film.

关键词： Atmospheric corrosion

吡嗪类化合物对酱香型白酒香气特征的影响分析

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食品与发酵工业 2025年第1期51卷 305-311,I0011-I0013页

作者：孙细珍熊亚青倪兴婷李强劲牌有限公司湖北黄石435100 中药保健食品质量与安全湖北省重点实验室湖北黄石435100

结合采用感官分析、香气物质定性与定量分析技术,解析吡嗪类化合物对酱香型白酒香气特征的影响。采用液液萃取结合气相色谱-质谱-嗅闻技术从三轮次酱香型白酒中鉴定出15种吡嗪类化合物,基于定量结果结合气味阈值发现6种香气活度值(odor ... 详细信息

结合采用感官分析、香气物质定性与定量分析技术,解析吡嗪类化合物对酱香型白酒香气特征的影响。采用液液萃取结合气相色谱-质谱-嗅闻技术从三轮次酱香型白酒中鉴定出15种吡嗪类化合物,基于定量结果结合气味阈值发现6种香气活度值(odor activity value,OAV)>1的吡嗪类化合物,对三轮次酱香型白酒具有重要的香气贡献;进一步通过香气重组与香气缺失/添加试验,明确了吡嗪类化合物对酱香型白酒香气特征的影响。综合研究表明,吡嗪类化合物对酱香型白酒的坚果香、烘焙香具有重要贡献,其次对青草香与花香也存在一定的影响,同时吡嗪类化合物对酱香型白酒的粮香与酱香具有烘托作用,提高吡嗪类化合物的浓度对提升酱香型白酒的丰富度与层次感具有明显的正向作用。该研究通过剖析吡嗪类化合物对酱香型白酒香气特征的影响,为酱香型白酒酿造工艺调控与产品品质提升提供参考。

关键词：酱香型白酒吡嗪类化合物香气特征香气活度值香气重组香气缺失

Unraveling the mechanism of action of Shangxia Liangji formula for treating insomnia:a metabolomics and network pharmacology approach

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Traditional Medicine Research 2025年第2期10卷 16-29页

作者： Xia-Jie Quan Hao Liang Yong-Hong Tang Li Jiang xiong-Ying Ji Feng-Ying Zhang Ping Zhang Bo Ouyang Department of Information The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Neurology The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Gastroscopy The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Traditional Chinese Medicine The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China

Background:Insomnia is a prevalent clinical condition and Shangxia Liangji formula(SXLJF)is a well-established method of ***,the specific mechanism of action of SXLJF remains ***:The mouse model of insomnia was established by intraperitoneal injection of ***-two mice were randomly divided into a negative control group,model group,SXLJF group(18.72 g/kg/day),and positive control group(diazepam,2 mg/kg)and treated with the corresponding drugs for 7 consecutive *** open field test and pentobarbital-induced sleeping test were ***-MS-based untargeted metabolomics and network pharmacology were applied to explore the potential targets of SXLJF for treating ***,key targets were validated using ***:Behavioral tests demonstrated that SXLJF reduced the total distance,average velocity,central distance,and sleep latency,and prolonged sleep *** and network pharmacology revealed potential targets,signaling pathways,metabolic pathways,and metabolites associated with the anti-insomnia effects of ***,tyrosine hydroxylase(TH)and tyrosine metabolism emerged as crucial metabolic pathways and targets,***-qPCR results supported the role of TH in the mechanism of SXLJF in treating ***:In conclusion,TH and tyrosine metabolism may represent significant targets and pathways for SXLJF in treating insomnia.

关键词： Shangxia Liangji formula insomnia metabolomics network pharmacology tyrosine hydroxylase tyrosine metabolism